BY ARTHUR M. LEA. 543 



thoracic punctures larger, less rounded and more or less inter- 

 rupted by feeble longitudinal ridges; elytral interstices much 

 narrower, and though similarly transversely impressed the granules 

 are very much longer than wide; the tibiae have the large outer 

 teeth much less prominent and the excavation shallower. 

 Length 3|, rostrum 1 (vix); width If mm. 



Hab.—^.Q. : Cooktown (Herr J. Faust). 



Perhaj^s a small variety of the preceding species. I have seen 

 but one specimen. 



Derbyia, n.g. 



Head rather small and convex, not concealed; ocular fovea 

 large, suboblong and deep. Byes large, subreniform, coarsely 

 faceted, widely separated above, almost touching below. Hosfrum 

 long, moderately thin and curved. Antennm stout; scape inserted 

 nearer apex than base of rostrum, the length of funicle; 1st joint 

 of the latter moderately long, 3rd-7th transverse; club elliptic- 

 ovate. Prothorax transverse, convex, sides strongly rounded, 

 apex narrow, less than half the width of base, base scarcely 

 bisinuate; ocular lobes somewhat rounded. Scutellum moderately 

 small, I'ound. Elytra slightly wider than prothorax, subcylindrical, 

 shoulders rounded. Pectoral canal rather narrow, deep, terminated 

 between middle of intermediate coxse. Mesosternal receptacle 

 narrowly transverse, cavernous. Metasternuni slightly shorter 

 than basal segment of abdomen ; episterna moderately large. 

 Abdomen moderately large; 1st segment as long as 2nd and 3rd 

 combined; 3rd and 4th combined slightly longer than 2nd and 

 noticeably longer than 5th. Legs stout ; femora edentate, 

 indistinctly grooved, posterior not extending to apex of abdomen; 

 tibi« somewhat compressed, dilating to apex, all more or less 

 serrate externally; anterior suddenly dilating outwards at apex, 

 intermediate semicircularly emarginate at apex on outer portion, 

 posterior more deeply emarginate, the emargination commencing 

 at one-third from apex; claw-joint long and moderately stout. 

 Convex, subcylindric, feebly clothed, winged. 



